Pneumatic stacker.



No. 728,511. r I PATENTED MAY 19, 1903.

' I I. L. ST'ALLARD.

- PNEUMATIC STA-GKER.

APPLICATION FILED FEB. 6. 190a.

' 4 3HEETS-SHEET 1.

no MOD-EL.

PATEN-TBD MAY19, 1903.

No. 728,511. I

F. L. STALLARD. PNEUMATIC STAOKER.

APPLICATION FILED FEB, 6. 1903.

' '4 SHEETSr'SHEBT 2.

N0 MODEL.

Francis L. Stallard I PATBNTEDMAY' 19, 1903.

RESTALLARD. I

PNEUMATIC STAGKER.

APPLICATION FILED FEB. 6, 1903.

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/vibneooeo UNITED STATES Patented May 19, 1903. PATENT OFFICE.

FRANCIS L. STALLARD, OF MACY, INDIANA, ASSIGNOR TO THE INDIANAMANUFACTURING COMPANY, OF INDIANAPOLIS,

RATION OF WEST VIRGINIA.

INDIANA, A CORPO- PNEUMATICQSTACKER.

SPECIFICATION forming part of Letters Patent No. 728,51 1, dated May 19,1903.

Application filed February 6, 1903. 7 Serial No. 142,160. (No model.)

My present invention relates to that classv of devices used withseparators and such like machines for conveying away the straw, 8m. Itsob ect is to produce such a device having a large range of adjustments;and said in-.

vention consists in suitable means for effectmg such adjustments.

Referring to the accompanying drawings,

. which are made a part hereof, and on which similar referencecharacters indicate similar parts, Figure 1 is a perspective view of apneumatic stacker embodying my invention, showing such stacker whenadjusted to its shortest length; Fig. 2, a similar view as seen from theopposite side when the stacker is adjusted to its extreme length; Fig.3, a top or plan View of such a stacker, the adjustment and arrangementbeing the same as shown in Fig. 2, portions, however, being broken awayto enable the distinctive fea-.

tures to be shown on a larger scale; Fig. 4, a side elevationillustrating the devices in the same condition as in Fig. 3; Fig. 5, acentral vertical sectional view through the operating mechanism as seenwhen looking in the direction indicated by the arrows from the dottedline 5 5 in Fig. 3; Fig. 6, an underside plan view of the said mechanismas seen when looking upwardly from the dotted lines 6 6 in Figs. 4 and5; Fig. 7, a horizontal sectional view as seen when looking downwardlyfrom the dotted line 7 7in Figs. 4 and5; Fig. 7 a detail sectional viewas seen when looking in the direction indicated by the arrows from thedotted line a a in Fig. 7; Fig. 8, a detail sectional view as seen whenlooking downwardlyfrom the dotted lines 8 8 in Figs. 4, 5, and 9; Fig.9, a detail side elevation similar to a portion of Fig. 4, but on anenlarged scale, of the mechanism at the outer end of the stacker; andFigs. 10, 11, 12, 13,

- 14, and 15, transverse vertical sectional views various positions, asis common.

cated by the arrows from the dotted lines 10 10,11 11, 12 12, 13 13, 1114, and 15 15, respectively, in Figs. 4 and 5.

This stacker is attached to and manipulated I from the machinewith whichit is designed to operate, as a threshing-machine or separator,

any way which may be desired, the invention relating solely to the meansfor extending and retracting the duct-sections of which the main stackertube or duct is composed.- For purin any of the usualand well-known waysor in poses of illustration I have shown a fragment of a separator 10; afan-casing 11, which contains the usual stacker-fan (not shown;) a

lower duct-section 12, leading from said fancasing to the turn-table 13,carried by the separator; a winding-tackle 14 for raising and loweringthe main stacker trunk or duct as a whole, and suitable telescopicelbow-sections 15 and 16, the one on the turn-table and the other onthelower main duct-section.

In my improved stacker the main stacker trunk or duct is composed ofthree sections 21, 22, and 23, on the outer end of the latter of whichisa suitable hood or deflecting device 24, which itself is usuallyadjustable to The'section 21, as is also common, is preferably mountedon an inner frame part or ring-frame 25, which in turn is mounted on apivot-rod 26, carried by suitable .arms 27, extending out from theturn-table 13. Said duct-section 21 is non-movable inres'pect tothisring-frame.

The section 22 telescopes back over the section 21, and the section 23in turn telescopes back over the section 22, so that when the sections22 and 23 are withdrawn to the extreme inner position the total lengthof the main straw-stacker trunk or duct is substantially only that ofone section, the parts 00- cupying the positions shown in Fig. 1.

' Extendingout from the sides of the ringframe 25 in a bracewisedirection are the bars 31 and 32, and they terminate at or near theouter end of the duct-section'21, where they 5 are rigidly attached toan arch-like frame 33. These bars are preferably T-bars in form, and thearrangement or disposition in respect to the other parts is preferablythat shown in the drawings.

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Extending back from the arch-frame 33 to the upper portion of thering-frame 25 and preferably connected to standards 34 35 (whichstandards are preferably formed integrally with said ring-frame) arerods 36 and 37, which serve the double purpose of guy or truss rods andtrack bars or rails, upon which an extensible bar, presently to bedescribed, is carried. These rods or bars 36 37 being in tension may be(and preferably are) small as compared to the brace-bars 31 and 32, andthey may be of any form desired. As, however, they are designed to formtrack-rails as well as truss-rods, I prefer to make them rectangular incross-section and of greater width than thickness and arrange them withthe width vertically and the thickness horizontally, as shown. Thesebars 36 and 37 are arranged a suitable distance apart, so that theextensible bar which operates the outer duct-section may be placedbetween them and carried thereby by means of suitable connections, asrollers or the like. This extensible bar 41 is preferably in the form ofa small I- beam, although it may be of any other suit able form, and itserves as an operating-bar by which the two movable duct-sections areextended and retracted. It is connected to and moves with the middleduct-section 22. (See Figs. 5 and 11.) At its rear end it carries thetrucks or rollers 42 and 43, which engage with the under sides of thebars 36 and '37, which thus form track-rails therefor, and

it is supported at or near the extreme outer end of the frame of whichsaid bars 36 and 37 form a part by means of other rollers 44 and 45.Said rollers (where the bar 41 is an I- beam or a T-bar) are preferablymounted on stud-shafts extendinginwardly from the sides of thearch-frame 33, so that said trucks pass below the flanges on the upperedges of said beam, and thus support it at this point, although they maybe carried elsewhere and arranged differently, if desired, the onlyessential being that they shall be so disposed as to support saidextensible bar both while at rest and when being moved.

A shaft 51, bearing a sprocket-wheel 52 and adapted to be turned by acrank 53, is mounted in suitable bearings carried by the ringframe 25,these hearings usually being holes drilled through the standards 34 35on said ring-frame. A second shaft 61, carrying two sprocket-wheels 62and 63, is mounted in suitable bearings in the arch-frame 33, saidbearings being sufficiently high in said frame so that saidsprocket-wheels are above the rods or bars 36, 37, and 41. A third shaft71, bearing a sprocket-wheel 72, is mounted in suitable bearings in ears73 74 at the extreme outer end of the extensible bar41,and a fourthshaft 81, hearing a sprocket- Wheel 82, is mounted in suitable hearingsin ears 83 84 at the extreme inner end of said bar 41. A sprocket-chain55 runs from the sprocketwheel 52 to the sprocket-wheel 62, and asecondsprocket-chain runs from the sprocketwheel 63 to thesprocket-wheels 72 and 82 and thence to the inner end of theduct-section 23, to which its ends are connected. 5, 9, and 14.) Thesprocket-chain 55 simply provides a means for actuating the shaft 61from the inner end of the duct. The ends of sprocket-chain 65 areconnected both to the outer duct-section 23 and to a saddle 46, mountedon the extensible duet-section-operating bar 41, and said saddle isadapted, as will be presently described, to travel on said bar during aportion of the operation of the apparatus and to be locked to move withsaid bar during another portion of the operation. By this means both theduct-sections 22 and 23 are extended and retracted by means of this samesprocket-chain 65, one being moved when the saddle 46 is free to travelon the bar 41 and the shaft 61 is being revolved in one direction andthe other being moved when the saddle 46 is locked to said bar 41 andthe shaft 61 is being revolved in the other direction. It will beunderstood, of course, that instead of these several sprocket-wheels andsprocketchains any other suitable power connections may be employed,such as sheaves and wirp ropes or other appropriate devices, withoutdeparting from my invention, it being only necessary to secure suitabletransmission of power from one of these shafts to another to effectuatethe result.

The saddle 46 is fixedlyattached to the outer duct-section 23, so thatwhen the saddle is fixedly connected or locked to the extensible barsaid duct-section and said bar maintain a constant relation to eachother, and when the saddle is unlocked and permitted to move in respectto said bar then said duct-section will also move in respect to saidbar, as will be presently described. Mounted on the saddle 46 is a latch47, the point of which is held into forcible although moderate contactwith the under side of the beam 41 at all times by means of a spring 48.At the proper point in said extensible beam is a perforation or notch49, with which the point of said latch is adapted to engage when saidlatch-point is brought to proper position to enable it to do so. Whenthe parts are retracted, (in shortening of the stacker-duct,) aprojection 19 on said latch comes in contact with a strike 38, usuallyformed integrally with the arch-frame 33, and this throws said latch outof engagement and holds it out until the succeeding proper movement iscompleted.

There is a lock-pin 40 on one side of the extensible bar 41 at or nearits rear end, and a catch-lever 39, mounted on one of the bars 34 or 35,is adapted to engage with said pin and hold said beam 41 from beingdrawn outwardly until said catch lever is released. This is to prevent awrong starting of the parts when it is desired to begin extending -thestacker, which might happen on account of lack of sufficient friction tohold such parts from starting.

The operation is as follows: Assuming the (See Figs.-

lation, as shown in Fig.1, and assuming that the latch-lever 39 isengaged with the pin 40,

so that the bar 41 is held to its inner or retracted position, properrevolution of the shaft 51 (by means of the crank 53) will through thevarious sprocket wheels and.

chains operate to draw out the outer ductsection 23 to the full distancepermitted by the construction of the device, the saddle 46 sliding alongthe bar 41 as the movement progrosses. When this movement has reachedits limit and the duct-section 23 is thus completely extended, the latch47 will register with the notch or perforation in the bar 41 and engagetherewith, locking the saddle and said bar together. Thereupon theoperator releases the latch-lever 39 from the pin 40 and reverses themotion of the shaft 51, which through the sprocket wheels and chainsthen draws .out the bar 41 and the duct-section 22 until they havereached their extreme outer position, if such extreme outer position isdesired, thus securing the extreme extension of the main stacker tube orduct. I am thus enabled to provide a pneumatic stacker in which I cansecure the delivery of the mate tion, what I claim as new, and desire tosecureby Letters Patent, is

1. The combination,in apneumatic stacker, of a duct composed of threesections, a track, an extensible duct section operating bar mounted onsaid track, a device mounted on.

said bar andadapted to travel thereon during one period in the operationof the apparatus and to be locked to be moved therewith during anotherperiod of said operation, and means for moving said device.

2. The combination,in a pneumatic stacker, with the duct'sectionsthereof, of a movable ductsection-operating bar, a device secured to aduct-section and mounted on said bar, and a lock whereby said device islocked to said bar during one period of the operation, while it is freeto move in respect thereto during another period, and means foractuating said device.

8. The co'mbination,in apneumatic stacker,

part by which it and said duct-section are carried, aduct-section-operating bar which is movable in respect to said track, asaddle mounted on said bar and fixedly secured to the outer'or thirdduct-section; a look by which said saddle may be locked to said bar atthe outer limit ofits movement, a flexible connector the ends whereofare connected to the outer duct-section at approximately a point wheresaid saddle is connected thereto, and means for driving said flexibleconnector from a point near the outer end of said track.-

4. The combination,in a pneumatic stacker, of a duct composed of threesections, a track, a duct-section-operating bar mounted on said track, aframe part carried at the outer end of the track, a shaft mounted insaid frame bearingsuitable wheels or pulleys, a shaft mounted in theframe at the rear of the inner duct-section also bearing a suitablewheelor pulley, a flexible connector connecting the wheel or pulley on thelast-mentioned shaft with one of the wheels or pulleys on thefirstmentioned shaft, other wheels or pulleys carried in bearings at theends of the duct-section-operating bar, and a second flexible connectorpassing over the second wheelor pulley on the first-mentioned shaft andover the wheels or pulleys carried by the duct-sectionoperating bar andhaving its ends connected to the inner end of the outer telescopicductsection, substantially as set forth.

5. Thecombinatiominapneumaticstacker, of a duct composed of threetelescopic sections, a track, a duct-section-operating bar mounted onsaid track, a flexible driver passing around wheels or pulleys at theends of said bar, a detent whereby said bar may be held in its retractedposition until released, means for propelling the flexible driver andthus extending the outer telescopic duct-section in respect to said bar,and means for propelling said bar and intermediate duct-section togetherwith said outer duct-section outwardly, whereby first the outerduct-section and then the second duct-section are telescopicallyextended, substantially as set forth.

6. The combination in a pneumatic stacker,

of a duct composed of telescopic sections, a supporting-frame for saidduct also composed of sections, one of which is longitudinally movablein respect to the other and is also longitudinally movable. in respectto one'of the duct-sections, a part connected to said duct-sectionembodying a catch adapted to engage therewith at one point'of the move-.

ment, and a strike on a stationary part adapted to disengage said latchwhen that point in the travel of the parts thus connected is reached.

7. The combinatiomin a pneumatic'stacker, of a duct composed oftelescopic sections, and a framework for supporting said duct, saidframework embodying a frame part'at the inner end of the structure, twomembers extending out bracewise from a low point, on said frame part,and rods extending from the outer end of the said brace-like membersback to a high point on said frame part.

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8. Thecombination,inapneumatic stacker, of a duct composed of telescopicsections, and a frame for supporting said duct composed of a stationarysection including an upright frame part, brace'rods and combinedtrussrods and track-rails, and a second section mounted on the saidtrack-rails and movable longitudinally with respect to said stationarysection.

9. Thecombinationflnapneumaticstacker, of a duct composed of telescopicsections, a duct-section-operating bar, a device adapted to travel withrelation to said bar during one period in the operation of the apparatusand to engage and move therewith during another period of saidoperation, and means for moving said device.

-to engage and move with said bar in either direction at another period,and means for actuating said device.

In Witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 3d day of February, A. D. 1903.

FRANCIS L. STALLARD. [L. 3.

Witnesses:

CHESTER BRADFORD, JAMES A. WALSH.

